Integrity Assessment Report: Topology-induced chiral photon emission from a large-scale meron lattice (Wu et al., Nature Electronics, 2023)

Academic fraud report · Geng Detector

Summary

Verdict: No clear evidence of academic misconduct based on text-level analysis. The report concludes the paper appears clean, though this assessment is constrained by the absence of original high-resolution image files, preventing pixel-level forgery detection. Key findings: timeline logic is consistent (sample preparation ~2020-2021, 530-day stability test completed before submission, ~1-year review cycle matches Nature Electronics norms); all listed instruments (Cryomagnetics 9 T magnet, Rigaku IV XRD, Talos F200X TEM, MicroSense EZ9 VSM, Bruker Dimension Icon SPM, MuMax3) are real commercial products; the linear fit of D_ind vs. growth field (R^2 = 0.932, slope -0.036, intercept -0.072) shows realistic experimental noise rather than suspiciously perfect correlation. Limitations: image duplication and splicing checks (Geng methods 1 and 3) cannot be performed without source figures. Confidence: moderate for text-based findings; image-level integrity remains unverified.

Verdict

No textual evidence of academic misconduct was identified. The paper is judged clear based on analysis of timeline, equipment specification, methodological detail, and data consistency. Pixel-level image forgery detection was not possible due to the absence of original source images.

Key findings

Timeline consistency: The reported 530-day sample stability is consistent with a preparation date around late 2020 to early 2021, well before the 31 May 2022 submission date. The 1-year review period (submission to 8 June 2023 acceptance) is typical for Nature Electronics.
Verified equipment: All major instruments cited are real, commercially available products — Cryomagnetics custom-model 9 Tesla cryogen-free superconducting magnet, Rigaku IV (XRD), FEI Talos F200X (TEM), MicroSense EZ9 (VSM), Bruker Dimension Icon (SPM), and MuMax3 simulation software. No fabricated or unverifiable instrument models were found.
Realistic data scatter: The linear fit D_ind = -0.036x - 0.072 with R^2 = 0.932 shows deviation between predicted and observed values at x = 9 T (predicted -0.396, observed -0.4266). This imperfect fit is consistent with genuine experimental noise rather than fabricated data, which would typically yield R^2 > 0.99.
Internal consistency of captions: Quantitative details in figure captions (e.g., roughness values 2.21 nm to 1.85 nm in Figure 1; scale bars 100 pm, 1 μm in Figure 2) are consistent with the accompanying text.
Image-level checks unavailable: Detection of image duplication, rotation reuse, or splicing (Geng methods 1 and 3) requires original figure files, which were not provided.

Evidence highlights

DOI: 10.1038/s41928-023-00990-4
Submitted: 31 May 2022; Accepted: 8 June 2023
Sample stability duration cited: 530 days
Linear fit parameters: y = -0.036x - 0.072; R^2 = 0.932
Data point at x = 9 T: -0.4266 (observed) vs. -0.396 (predicted from fit)
Equipment list: Cryomagnetics 9 T magnet, Rigaku IV, Talos F200X, MicroSense EZ9, Bruker Dimension Icon, MuMax3

Notes

This assessment is based solely on extracted text and figure captions; original high-resolution images were not available for visual forensic analysis.
The "clear" verdict is necessarily provisional and applies only to text-based dimensions of Geng's six-form framework.
For definitive confirmation, the corresponding authors or publisher (Nature Electronics) should be consulted regarding availability of original microscopy and spectroscopy images.
No follow-up actions (PubPeer posts, institutional reports, or author inquiry) are recommended on the basis of current evidence.